kommentar..... mit php. in datei schreiben und in datei drunter nach abschicken auflisten

if($_POST['kommentar']=="" AND $_POST['name']==""){
//echo .....
}
else{
$handle = fopen ("linksammlung.txt", "a");
fwrite ($handle,$datum);
fwrite ($handle,"|");
fwrite ($handle,$uhrzeit);
fwrite ($handle,"|");
fwrite ($handle,$_POST['name']);
fwrite ($handle,"|");
fwrite ($handle,$_POST['kommentar']);
fwrite ($handle,"\r\n");
fclose ($handle);
$_POST['kommentar']="";
$_POST['name']="";
}







echo "<form name=\"kommentar\" action=\"(selbe).php\" method=\"post\" enctype=\"text/html\" >";
echo "<p>Name:</p>";
echo "<input type=\"text\" name=\"name\" value=\"\" size=\"20\" maxlength=\"50\"/>";
echo "<p>Nachricht:</p>";
echo "<textarea name=\"kommentar\" rows=\"5\" cols=\"50\"></textarea><br />";
echo "<input type=\"submit\" name=\"senden\" value=\"Senden\" />";
echo "</form>";
















//txt Kommentare Auslesen




echo "<table>";
echo "<thead>";
echo "<tr>";
echo "<th>";
echo "Datum:";
echo "</th>";
echo "<th>";
echo "Uhrzeit:";
echo "</th>";
echo "<th>";
echo "Name:";
echo "</th>";
echo "<th>";
echo "Nachricht:";
echo "</th>";
echo "</tr>";
echo "</thead>";
$fd = fopen("linksammlung.txt", "r");
while ($inhalt=fgets ($fd,4096))
{
list ($gesendetdatum,$gesendetzeit,$absender,$kommentar) = explode ("|",$inhalt);
echo "<tr>";
echo "<td>";
echo "$gesendetdatum ";
echo "</td>";
echo "<td>";
echo "$gesendetzeit ";
echo "</td>";
echo "<td>";
echo "$absender ";
echo "</td>";
echo "<td>";
echo "$kommentar";
echo "</td>";
echo "</tr>";
}
echo "</table>";